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<br /> Soil Survey
<br /> 60
<br /> may be very briefly perched above the hardpan after variegated very pale brown and light yellowish brown, ;+
<br /> periods of heavy rainfall or irrigation. Runoff is very weakly cemented to indurated hardpan. In some areas
<br /> slow, and the hazard of water erosion is slight. The rate the surface layer is clay or silty clay loam.
<br /> of water intake in irrigated areas is 1.5 inches per hour. Included in this unit are small areas of Archerdale,
<br /> The hazard of soil blowing is slight. The soil is subject Cogna, Hollenbeck, and Vignolo soils in landscape
<br /> to rare flooding, which occurs during years of positions similar to those of the Finrod soil. Included
<br /> areas make u about 15 percent of the total acreage `k
<br /> abnormally high precipitation. p
<br /> Most areas are used for irrigated crops or vineyards. Permeability is slow in the Archerdale soil. Available
<br /> A few areas are used for orchards or for homesite water capacity is high. The shrink-swell potential also is
<br /> development. This unit may provide wetland functions high. The effective rooting depth is limited by the s
<br /> and values. These should be considered in plans for hardpan at a depth of 40 to 60 inches. Depth to the
<br /> enhancement of wildlife habitat or land use conversion. water table is more than 6 feet, but water may be very
<br /> This unit is suited to irrigated row, field, and vineyard briefly perched above the hardpan after periods of
<br /> crops. The main limitations are depth to the hardpan heavy rainfall or irrigation. Runoff is slow, and the
<br /> and the low available water capacity. The hardpan limits hazard of water erosion is slight. The rate of water
<br /> the suitability for deep-rooted plants. Where feasible, intake in irrigated areas is 0.5 inch per hour. The soil is & 1
<br /> deep ripping of this restrictive layer can help to subject to rare flooding, which occurs during years of
<br /> overcome this limitation. Because the soil is droughty, abnormally high precipitation.
<br /> applications of irrigation water should be light and Most areas of this unit are used for irrigated crops or x
<br /> frequent. Furrow, border, and sprinkler irrigation orchards. A few areas are used for homesite
<br /> systems are suitable. Careful applications of irrigation development.
<br /> water are needed to prevent the buildup of a high water This unit is suited to irrigated row, field, and orchard
<br /> table. A tillage pan forms easily if the soil is tilled when crops. The main limitations are the slow permeability
<br /> wet. Chiseling or subsoiling breaks up the pan. and depth to the hardpan. Because of the restricted
<br /> Returning crop residue to the soil or regularly adding permeability, water applications should be regulated so :
<br /> other organic material improves fertility, minimizes that the water does not stand on the surface and z'
<br /> crusting, and maintains the rate of water intake. damage the crops. The hardpan limits the suitability for
<br /> if this unit is used for homesite development, the deep-rooted crops. Where feasible, deep ripping of this
<br /> main limitation is depth to the hardpan. The rare restrictive layer can help to overcome this limitation.
<br /> flooding is a hazard. Ripping the hardpan improves Furrow, border, and sprinkler irrigation systems are
<br /> permeability and thus also improves the suitability of the suitable. Careful applications of irrigation water are
<br /> soil for septic tank absorption fields. Houses, roads, and needed to prevent the buildup of a high water table.
<br /> streets should be constructed above expected flood Returning crop residue to the soil or regularly adding
<br /> levels. other organic material improves fertility, minimizes r
<br /> This map unit is in capability units Ills-8 (MLRA-17), crusting, and increases the rate of water intake.
<br /> irrigated, and JVs-8 (MLRA-17), nonirrigated. It is in If this unit is used for homesite development, the
<br /> vegetative soil group G. main limitations are the high shrink-swell potential, low A .
<br /> strength, the slow permeability, and depth to the
<br /> 158—Finrod clay loam, 0 to 2 percent slopes. This hardpan. The rare flooding is a hazard. Properly
<br /> moderately well drained, nearly level soil is on low fan designing foundations and footings and diverting runoff
<br /> terraces. It is deep to a hardpan. It formed in alluvium away from buildings help to prevent the structural
<br /> derived from mixed rock sources. A few areas are damage caused by shrinking and swelling. Properly a:
<br /> dissected by intermittent sloughs that have been filled designing buildings and roads can offset the limited
<br /> as a result of land leveling. Elevation is 35 to 120 feet. ability of the soil to support a load. On sites for septic
<br /> The average annual precipitation is about 14 inches, tank absorption fields, the slow permeability can be v
<br /> the average annual air temperature is about 60 degrees overcome by increasing the size of the absorption field.
<br /> F, and the average frost-free period is about'270 days. Ripping the hardpan improves permeability and thus _
<br /> Typically, the upper 8 inches of the surface layer is also improves the suitability of the soil for septic tank y
<br /> dark brown clay loam. The lower part of the surface absorption fields. Houses, roads, and streets should be
<br /> layer and the upper part of the subsoil are dark brown constructed above expected flood levels.
<br /> and yellowish brown clay about 25 inches thick. The This map unit is in capability units Its-8 (MLRA-17),
<br /> next part of the subsoil is variegated light yellowish irrigated, and 1Vs-8 (MLRA-17), nonirrigated. It is in _f
<br /> brown, brown, and strong brown clay about 15 inches vegetative soil group A.
<br /> thick. The lower part to a depth of 60 inches is a
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